Find research datasets worth reusing

opencc-by-4.0Apr 2022View details →

SILICOFCM_Virtual population_bi-ventricles heart geometries

SILICOFCM HCM (hypertrophic cardiomyopathy) baseline bi-ventricle geometry 3D reconstructed from medical imaging (STL files). This dataset contains 20 generated virtual geometries utilizing the geometry morphing tool integrated in the SILICOFCM Virtual Population Module. The dataset can be utilized for FE (Finite Element) modeling and simulations.

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Rapid evolutionary divergence of a songbird population following recent colonization of an urban area

Colonization of a novel environment by a small group of individuals can lead to rapid evolutionary change, yet evidence of the relative contributions of neutral and selective factors in promoting divergence during the early stages of colonization remain scarce. Here, we use genome-wide SNP data to test the role of neutral and selective forces in driving the divergence of a unique urban population of the Oregon junco (Junco hyemalis oreganus), which became established on the campus of the University of California at San Diego (UCSD) in the early 1980s. Previous studies based on microsatellite loci documented significant genetic differentiation of the urban population as well as divergence in sexual signaling and life-history traits relative to nearby montane populations. However, the geographic origin of the colonization and the factors involved in the onset of the differentiation process remained uncertain. Our genome-wide SNP dataset confirmed the marked genetic differentiation of the UCSD population, and phylogenomic analysis identified the coastal subspecies pinosus from central California as its sister group instead of the neighboring mountain population. Demographic inference based on site frequency spectra recovered a time of separation from pinosus as recent as 20 to 32 generations, and a strong bottleneck at the time of colonization, suggesting a relevant role of founder effects and drift in the genetic differentiation of the UCSD population. However, we also found significant associations between environmental parameters characterizing the urban habitat of UCSD and genome-wide variants linked to functional genes. Some of the identified gene functions, like heavy metal detoxification and high-pitched hearing, have been reported as potentially adaptive in birds inhabiting urban environments. These results suggest that the interplay between founder events and directional selection may result in rapid shifts in both neutral and adaptive loci across the genome, and reveal the UCSD population of juncos as an ongoing case of divergence following the colonization of an anthropic environment.

opencc-zeroDec 2021View details →

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Data from: Drastic shift in flowering phenology of F1 hybrids explains the population structure of Imperata cylindrica in Japan

Hybridization is a major source of phenotypic variation and a driving force for evolution. On the other hand, these novel traits can often disrupt adaptive relationships between the parental phenotypes and their environments. However, it remains unclear how new hybrid traits disrupt local adaptation. Here, we report how a new phenotype of hybrids between two ecotypes of Imperata cylindrica contributes to rapid reproductive isolation from their parents and affects hybrid fitness. We analyzed 350 accessions of I. cylindrica collected from the 1980s to the 2010s throughout Japan to explore the genetic population structure of the hybrids. We surveyed flowering periods, seed sets, and germination of two ecotypes and their hybrids in both natural habitats and common gardens. Genetic analyses of population structure revealed that the hybrid populations consisted of only F1 individuals, without post-F1 hybrids. The flowering phenology of the F1 plants was delayed to autumn, 5–6 months later than the parental ecotypes. The drastic shift in flowering phenology prevents F1s from backcrossing. In addition, it changes their seed dispersal time to winter. Germination is inhibited by low temperatures, and the seeds likely decay before the next spring, resulting in the absence of an F2 generation. For the first time in the field, we found environmental mismatch of F1 as a specific mechanism for the maintenance of only F1 populations. Synthesis. We have demonstrated that this flowering phenology mismatch promotes reproductive isolation between the parents and F1s and affects various temporal components of the hybrids, resulting in a unique hybrid population consisting only of F1s. This system sheds light on the importance of hybrid traits in terms of rapid reproductive isolation.

opencc-zeroApr 2022View details →

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Dataset of habitat quality does not predict animal population abundance on frequently disturbed landscapes

The data presented here are related to the research article entitled "Habitat quality does not predict animal population abundance on frequently disturbed landscapes". Using an individual-based model, we simulated movement of theoretical individuals in a dynamically disturbed landscape and quantified the error of predicting population spatial relative abundance using an habitat model. This dataset provides the Earth Mover's Distance (EMD) as prediction error measure obtained in simulations with varying individual step length and disturbance frequency.

opencc-zeroApr 2022View details →

opencc-by-4.0Dec 2021View details →

Fig. 1 in Distribution Pattern, Nest-Tree Features And Breeding Performance Of Population Of The Black Stork, Ciconia Nigra (Ciconiiformes, Ciconiidae), In Northwestern Serbia

Fig. 1. The proportion of tree species picked for nest placement by the Black Stork (Ciconia nigra) in Northwestern Serbia (n = 44).

opencc-by-4.0Mar 2019View details →

Fig. 2 in Population Densities And Community Structure Of Birds Breeding In A Suburban Wooded Grassland In The Highveld Of Lesotho

Fig. 2. Numbers (right axis; dot or square signs) of species (A), all breeding pairs (B), and breeding pairs of selected bird species (C: Ss — Streptopelia senegalensis, Sc — Streptopelia capicola; D: RwS — Onychognathus morio, ES — Sturnus vulgaris; E — Passer griseus; F — Ploceus velatus; G — Columba guinea, H — Lanius collaris) in relation to the rainfall (columns; in mm per annum; left axis).

opencc-by-4.0May 2019View details →

Fig. 2 in Microsatellite Variability Of Two Populations Of Clarias Gariepinus (Siluriformes, Clariidae) In Nigeria

Fig. 2. Genetic dendrogram of C. gariepinus from two vegetation zone (Lokoja and Asejire) of Nigeria.

Fig. 2 in Population Structure Of Ungulates In Waterberg National Park, Namibia

Fig. 2. Location of Waterberg N. P., the different vegetation types and the distribution of the seven (7) water holes in the park (Jankowitz, 1983).

Fig. 4 in Population Structure Of Ungulates In Waterberg National Park, Namibia

Fig. 4. Herd size and number of herds of White and Black Rhino based on water point census only in Waterberg Plateau Park.

Fig. 1 in Population Structure Of Ungulates In Waterberg National Park, Namibia

Fig. 1. Rainfall in the Waterberg N. P. for the years 1980 to 2017 (Sasscalweathernet.org/station_datasheet_ we.php).

Fig. 6 in Population Structure Of Ungulates In Waterberg National Park, Namibia

Fig. 6. Year to year changes in age structure (adults: black bar, Juveniles: grey bars) in ungulates in the Waterberg Plateau Park in 2008–2013, based on water point census.

Fig. 5 in Population Structure Of Ungulates In Waterberg National Park, Namibia

Fig. 5. Year to year changes in the proportion of sex (males: black bar, females: grey bars) in ungulates in the Waterberg Plateau Park in 2008–2013, based on water point census.

Fig. 2 in Species Structure Of Oribatid Mite Population (Acari, Oribatea) In The Forest Floor Litter In The Reclaimed Territories (Ukraine)

Fig. 2. Stratigraphic types of artificial edaphotopes within the experimental-production reclamation site.

Fig. 1 in Species Structure Of Oribatid Mite Population (Acari, Oribatea) In The Forest Floor Litter In The Reclaimed Territories (Ukraine)

Fig. 1. Location of the Western Donbas coal basin in the Dnipropetrovsk Region, Ukraine: WD — Western Donbas.

Fig. 6 in Species Structure Of Oribatid Mite Population (Acari, Oribatea) In The Forest Floor Litter In The Reclaimed Territories (Ukraine)

Fig. 6. Average population density and species richness of oribatid mites on different recultivation types within red cedar plantation.

T a b l e 2 in Species Structure Of Oribatid Mite Population (Acari, Oribatea) In The Forest Floor Litter In The Reclaimed Territories (Ukraine)

T a b l e 2. Species structure of oribatid mite population, collected from coniferous floor litter within red cedar plantation on the humified calcic chernozem layer with loess-like loam interlayer (3rd stratigraphic type)

opencc-by-4.0Jun 2017View details →

Fig. 3 in Gastrointestinal Parasite Community In A New Population Of The Przewalski'S Horse (Equus Ferus Przewalskii) In The Orenburg State Reserve, Russia

Fig. 3. Distribution of strongylid species from the Przewalski's horses in Pre-Urals Steppe, Orenburg State Reserve, on ten prevalence classes.

opencc-by-4.0Aug 2017View details →

Fig. 2 and table 3 in Phenotypic Diversities Of Four Populations Of Clarias Gariepinus (Siluriformes, Clariidae) Obtained From Ogun And Ondo State Waterbodies In South-Western Nigeria

Fig. 2 and table 3 illustrate the values of PCA loadings for the morphometrics of Clarias gariepinus obtained from the four Rivers showing Pre-ventral distance (PVD) as the trait with the highest variation.

opencc-by-4.0Jan 2017View details →

Fig. 1 in Molecular Characterization Of Lates Niloticus (Perciformes, Latidae) Populations From Three Nigerian Waterbodies Using Random Amplified Polymorphic Dna And Microsatellite Markers

Fig. 1. Map showing the sample locations of L. niloticus (Linnaeus, 1758). Population 1 — Kainji lake, Population 2 — River Benue, Makurdi and Population 3 — Ikere-Gorge reservoir, Iseyin, Oyo state.